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\documentclass{article}
\usepackage{axiom}
\begin{document}
\title{\$SPAD/src/algebra omserver.spad}
\author{Vilya Harvey}
\maketitle
\begin{abstract}
\end{abstract}
\eject
\tableofcontents
\eject
\section{package OMSERVER OpenMathServerPackage}
<<package OMSERVER OpenMathServerPackage>>=
)abbrev package OMSERVER OpenMathServerPackage
++ Author: Vilya Harvey
++ Date Created:
++ Date Last Updated:
++ Basic Functions:
++ Related Constructors:
++ Also See:
++ AMS Classifications:
++ Keywords:
++ References:
++ Description: \spadtype{OpenMathServerPackage} provides the necessary
++ operations to run AXIOM as an OpenMath server, reading/writing objects
++ to/from a port. Please note the facilities available here are very basic.
++ The idea is that a user calls e.g. \axiom{Omserve(4000,60)} and then
++ another process sends OpenMath objects to port 4000 and reads the result.
OpenMathServerPackage(): with
OMreceive : OpenMathConnection -> Any
++ OMreceive(c) reads an OpenMath object from connection \axiom{c} and
++ returns the appropriate AXIOM object.
OMsend : (OpenMathConnection, Any) -> Void
++ OMsend(c,u) attempts to output \axiom{u} on \aciom{c} in OpenMath.
OMserve : (SingleInteger, SingleInteger) -> Void
++ OMserve(portnum,timeout) puts AXIOM into server mode on port number
++ \axiom{portnum}. The parameter \axiom{timeout} specifies the timeout
++ period for the connection.
== add
import OpenMathDevice
import OpenMathConnection
import OpenMathPackage
import OpenMath
OMreceive(conn: OpenMathConnection): Any ==
dev: OpenMathDevice := OMconnInDevice(conn)
OMsetEncoding(dev, OMencodingUnknown);
OMread(dev)
OMsend(conn: OpenMathConnection, value: Any): Void ==
dev: OpenMathDevice := OMconnOutDevice(conn)
OMsetEncoding(dev, OMencodingXML);
--retractable?(value)$AnyFunctions1(Expression Integer) =>
-- OMwrite(dev, retract(value)$AnyFunctions1(Expression Integer), true)
retractable?(value)$AnyFunctions1(Integer) =>
OMwrite(dev, retract(value)$AnyFunctions1(Integer), true)
retractable?(value)$AnyFunctions1(Float) =>
OMwrite(dev, retract(value)$AnyFunctions1(Float), true)
retractable?(value)$AnyFunctions1(SingleInteger) =>
OMwrite(dev, retract(value)$AnyFunctions1(SingleInteger), true)
retractable?(value)$AnyFunctions1(DoubleFloat) =>
OMwrite(dev, retract(value)$AnyFunctions1(DoubleFloat), true)
retractable?(value)$AnyFunctions1(String) =>
OMwrite(dev, retract(value)$AnyFunctions1(String), true)
OMserve(portNum: SingleInteger, timeout: SingleInteger): Void ==
conn: OpenMathConnection := OMmakeConn(timeout)
OMbindTCP(conn, portNum)
val: Any
while true repeat
val := OMreceive(conn)
OMsend(conn, val)
@
\section{License}
<<license>>=
--Copyright (c) 1991-2002, The Numerical ALgorithms Group Ltd.
--All rights reserved.
--
--Redistribution and use in source and binary forms, with or without
--modification, are permitted provided that the following conditions are
--met:
--
-- - Redistributions of source code must retain the above copyright
-- notice, this list of conditions and the following disclaimer.
--
-- - Redistributions in binary form must reproduce the above copyright
-- notice, this list of conditions and the following disclaimer in
-- the documentation and/or other materials provided with the
-- distribution.
--
-- - Neither the name of The Numerical ALgorithms Group Ltd. nor the
-- names of its contributors may be used to endorse or promote products
-- derived from this software without specific prior written permission.
--
--THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
--IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
--TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
--PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
--OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
--EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
--PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
--PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
--LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
--NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
--SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@
<<*>>=
<<license>>
<<package OMSERVER OpenMathServerPackage>>
@
\eject
\begin{thebibliography}{99}
\bibitem{1} nothing
\end{thebibliography}
\end{document}
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